Winifred CAIN/DOUGHERTY m. 1855 Montreal

My gg-grandparents Michael Dougherty & Winnifred CAIN were married in Montreal.Catholics.I am trying to develop the Cain as well as Dougherty lines.Dougherty's from Tipperary & CAIN from Limerick.They had one son in Montreal and several in Lucan, Ontario before migrating to Dubuque, IA.I have much to share on their decendents.